In my journeying to New York city, to attend their previous convention in August, 1850, an accident obliged me to walk for some distance, in the middle of a hot day. The convention sat in Hope Chapel, which was poorly ventilated; and in the evening, I sat under a large gas-burner. On entering my room at the New-York Hotel, which was on the ground floor, situated where the only air was from a confined, central enclosure, I perceived at the only window a strong smell of fresh paint from the outer walls, so that I was obliged to close it. Being excessively fatigued, I slept heavily--till at early dawn I awaked to find myself in a dying state. Attempting to move my arms, they were like lead by my side--and my breath was but a feeble gasp. Without the knowledge of my theory--my bane, as many of my friends have thought--I should then have had no antidote. But I knew where was the destroying agent, and what was the only means by which I had a chance of removing it; and I used the little strength I had left to breathe deeper, and then to strive for a better position. Long and doubtful was the struggle. It was ten o'clock when, with tottering steps, I got into a carriage, and sought the free fresh air, which enabled me to take a little food. In the evening, I went into the Teacher's Convention, having first ordered from my publisher a sufficient number of my books on Respiration to present one to each member; and then, at my request, a Committee of Investigation was appointed by the convention to report on my theory. They reported favorably to the succeeding convention at Buffalo, which adopted the report, and I published and circulated it. This committee I had been allowed to choose, and it consisted of my friend, Prof. Twiss--the first believer in the theory--and Mr. Fellows, that Professor of Natural Philosophy, who formerly assisted in making my apparatus. Mr. Fellows carried the report to Buffalo, and when he read it in the convention, editors immediately came to him to request copies for the press. But, by the influence of physicians, they afterwards declined it when offered. It seemed to be the general plan of the regular faculty (in the Eastern, not the Western, States) to put the theory into a condition resembling the algide state of cholera, where it would die of coldness; but, by the aid of Divine Providence, it will, like its author, restore itself by its own inherent vitality--the vitality of immortal truth. SECTION IV. Proofs from Dr. Cartwright's Great Experiments on Alligators--Resuscitation of Dr. Ely's Child--Dr. Bowling, Editor of the Nashville Medical Journal, endorses Dr. Washington, who, in that journal, "crushes out" all Opposition to the Theory--Dr. Draper's Acknowledgment of it in New York--Homœopathists--Conclusion.